pub(crate) fn before_exchange()Expand description
Before an exchange: on a phone, the quick part of its step; on a computer, how far its clock may run ahead of the phone’s. Then, in a thread of its own that never holds the exchange: the import’s next batch (a phone’s window; the background service runs it after its exchange) or the media brought here (a computer). Once a day, old requests and outcomes out (texts never).